stereographic

104 days ago by bennettmeredith

x,y,z = var('x,y,z') 
       
plane = plot3d(0,(x,-2,2),(y,-2,2),color="green") 
       
lin = line3d([(0,0,1),(2,2,-1)],thickness=3,color='red') 
       
s =sphere((0,0,0),color='blue',opacity=0.5, aspect_ratio=[1,1,1]) 
       
show(s+plane+lin) 
       
lin = line3d([(0,0,1),(1/2,1/2,-1)],thickness=3,color='red') 
       
show(s+plane+lin)